Free Online Computer Science Courses

Updated on August 26, 2026

Free Online Computer Science Courses

Computer science is the study of computational systems, their practical applications, and the examination of how humans interact with and improve upon new technology. College computer science programs and their open online courses typically focus on these primary concentrations: the theory behind programming language, the pragmatic applications and development of new technology, instructional design, and the creation of more user-friendly tech interfaces. Specifically, many courses deal with algorithm creation and coding techniques, while others will apply this knowledge to real-world tasks such as software construction.

Why Take Free Online Computer Science Courses?

Online computer science courses are offered at both undergraduate and graduate levels, and since computers and mobile technology are so ubiquitous, it is possible to earn a viable education through online courses and degree programs. However, in most instances, hiring personnel will restrict their employee search to candidates with qualifying degrees or exceptional programming abilities. As such, an online computer science course cannot substitute for a degree in the job market, but you can ensure that you receive quality online instruction that equates that of an on-campus program.

Online courses in computer science are viable options if you want to learn more about software engineering, communication network construction, robotics, and coding theory. During these online courses, you will learn:

  • How programming languages differ in terms of form and function.
  • How open sourcing jas given the general public increased ability to design new tech interfaces.
  • What some of the most intriguing advancements in computer science still to come.
  • How advances computing technology influenced seemingly disparate fields like healthcare and finance.
  • Who some of the pioneers of early computational science were and how their findings influence your coursework.

When selecting an open online course from a university, it is essential that you first gauge their accreditation, viability, and relevance to your intended career. Additionally, you should select courses that require copious coding assignments so you earn real-world experience that can be applied to future field-related careers.

Find Free Online Computer Science Courses

We have compiled relevant open courseware in computer science and organized it in the directory below. Open courseware is a collection of online tests, video lectures, and related course materials from universities around the world. While these materials are free to access, you will have to learn independently since you cannot interact with the professor. However, these courses can be excellent resources if you are considering an on-campus or online computer science degree and want to gauge your interest in the subject and your ability to meet classroom requirements.

Featured Courses

94 open courses to explore